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Analog Electronics

Analog Electronics
Which of the following is trivalent impurity ?

 Silicon
 Boron
 Antimony
None of these

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Analog Electronics
The barrier potential across each silicon depletion layer is

 0 V.
  0.7 V.
 0.3 V.
 1 V.

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Analog Electronics
An amplifier using an opamp with slew rate SR=1v/µsec has a gain of 40db.if this amplifier has to faithfully amplify sinusoidal signals from dc to 20 KHz without introducing any slew-rate induced distortion, then the input signal level must not exceed

795mV
39.5mV
79.5 mV
395mV

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Analog Electronics
A JFET can operate in

  enhancement mode only.
  none of these.
  depletion mode only.
  depletion and enhancement mode only.

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Analog Electronics
A pn junction/Diode is a/an

 Unidirectional Component
 Linear component
None of these
 Bidirectional component

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Analog Electronics
Under normal reverse bias voltage applied to diode, the reverse electric current in Si diode

  none of them.
  1000 micro A.
  100 mA.
  order of micro A.

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